Which product is equal to 4?
A.4x11/10
B.4x2/3
C.4x5/8
D.4x5/5

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)